Without Consent or Contract: The Rise and Fall of American Slavery by Robert William Fogel

Without Consent or Contract: Evidence and Methods edited by Robert W. Fogel, edited by Ralph A. Galantine, edited by Richard L. Mannings

Without Consent or Contract: Technical Papers Volume I: Markets and Productions Volume II: Conditions of Slave Life and the Transition to Freedom edited by Robert W. Fogel, edited by Stanley L. Engerman